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    COMPOSITE SINTERED POWDER METAL ARTICLES
    11.
    发明申请
    COMPOSITE SINTERED POWDER METAL ARTICLES 有权
    复合烧结粉末金属制品

    公开(公告)号：US20120285293A1

    公开(公告)日：2012-11-15

    申请号：US13558769

    申请日：2012-07-26

    Applicant: Prakash K. Mirchandani ,  Morris E. Chandler

    Inventor： Prakash K. Mirchandani ,  Morris E. Chandler

    IPC: B32B15/02 ,  E21B10/60 ,  E21B10/18 ,  E21B10/52 ,  B27G13/00 ,  E21C35/18 ,  B23C5/00 ,  B23B51/00 ,  B23D61/00 ,  B21D37/01 ,  E21B10/42 ,  E21B10/55

    CPC classification number: C22C29/00 ,  B22F7/062 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C29/08 ,  C22C2204/00 ,  Y10T83/929 ,  Y10T407/27 ,  Y10T408/78 ,  C22C32/00 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/013 ,  B22F2201/20

    Abstract: A composite sintered powder metal article including a first region including a cemented hard particle material such as, for example, cemented carbide. The article includes a second region including: a metallic material selected from a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, a tungsten alloy; and from 0 up to 30 percent by volume of hard particles. The first region is metallurgically bonded to the second region, and each of the first region and the second region has a thickness of greater than 100 microns. The second region comprises at least one mechanical attachment feature so that the composite sintered powder metal article can be attached to another article. The article comprises one of an earth boring article, a metalcutting tool, a metalforming tool, a woodworking tool, and a wear article.

    Abstract translation: 一种复合烧结粉末金属制品，其包括第一区域，该第一区域包括例如硬质合金的粘结硬质颗粒材料。 该制品包括第二区域，其包括：选自钢，镍，镍合金，钛，钛合金，钼，钼合金，钴，钴合金，钨，钨合金的金属材料; 和0至30体积％的硬颗粒。 第一区域冶金地结合到第二区域，并且第一区域和第二区域中的每一个具有大于100微米的厚度。 第二区域包括至少一个机械附接特征，使得复合烧结粉末金属制品可以附着到另一个制品上。 该制品包括镗孔制品，金属切削工具，金属成形工具，木工工具和磨损制品中的一种。

    Composite Cemented Carbide Rotary Cutting Tools and Rotary Cutting Tool Blanks
    12.
    发明申请
    Composite Cemented Carbide Rotary Cutting Tools and Rotary Cutting Tool Blanks 有权
    复合硬质合金旋转刀具和旋切刀具坯料

    公开(公告)号：US20120282051A1

    公开(公告)日：2012-11-08

    申请号：US13550690

    申请日：2012-07-17

    Applicant: Prakash K. Mirchandani

    Inventor： Prakash K. Mirchandani

    IPC: B23C5/16 ,  B23G5/06 ,  B23B51/02

    CPC classification number: C22C1/051 ,  B22F7/062 ,  B22F2005/001 ,  C22C29/06 ,  Y10T407/1946 ,  Y10T407/26 ,  Y10T407/27 ,  Y10T408/78 ,  Y10T408/9097

    Abstract: Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide.

    Abstract translation: 公开了复合制品，包括复合旋转切割工具和复合旋转切割工具坯料以及制造制品的方法。 复合制品包括细长部分。 细长部分包括由第一硬质合金构成的第一区域和自发地结合到第一区域并由第二硬质合金构成的第二区域。 第一硬质合金和第二硬质合金中的至少一个是包括硬质合金分散相和硬质合金连续相的混合硬质合金。 硬质合金分散相和硬质合金连续相中的至少一种包括至少0.5重量％的基于包括立方晶碳的相的重量的立方晶碳。

    Earth-boring bits and other parts including cemented carbide
    15.
    发明授权
    Earth-boring bits and other parts including cemented carbide 有权
    地镗头等部件包括硬质合金

    公开(公告)号：US08025112B2

    公开(公告)日：2011-09-27

    申请号：US12196815

    申请日：2008-08-22

    Applicant: Prakash K. Mirchandani ,  Morris E. Chandler ,  Michale E. Waller ,  Heath C. Coleman

    Inventor： Prakash K. Mirchandani ,  Morris E. Chandler ,  Michale E. Waller ,  Heath C. Coleman

    IPC: E21B10/46

    CPC classification number: E21B10/42 ,  B22F3/1035 ,  B22F3/26 ,  B22F2005/001 ,  C22C29/08 ,  Y10T428/12146 ,  Y10T428/12486

    Abstract: An article of manufacture includes a cemented carbide piece and a joining phase that binds the cemented carbide piece into the article. The joining phase includes inorganic particles and a matrix material. The matrix material is a metal and a metallic alloy. The melting temperature of the inorganic particles is higher than the melting temperature of the matrix material. A method includes infiltrating the space between the inorganic particles and the cemented carbide piece with a molten metal or metal alloy followed by solidification of the metal or metal alloy to form an article of manufacture.

    Abstract translation: 制品包括硬质合金片和将硬质合金片结合到制品中的接合阶段。 接合相包括无机颗粒和基质材料。 基体材料是金属和金属合金。 无机颗粒的熔融温度高于基体材料的熔融温度。 一种方法包括用熔融金属或金属合金渗透无机颗粒和硬质合金块之间的空间，随后金属或金属合金固化以形成制品。

    Earth-boring bits
    17.
    发明授权
    Earth-boring bits 有权
    无聊的钻头

    公开(公告)号：US08007714B2

    公开(公告)日：2011-08-30

    申请号：US12033960

    申请日：2008-02-20

    Applicant: Prakash K. Mirchandani ,  Jimmy W. Eason ,  James J. Oakes ,  James C. Westhoff ,  Gabriel B. Collins ,  John H. Stevens ,  Steven G. Caldwell ,  Alfred J. Mosco

    Inventor： Prakash K. Mirchandani ,  Jimmy W. Eason ,  James J. Oakes ,  James C. Westhoff ,  Gabriel B. Collins ,  John H. Stevens ,  Steven G. Caldwell ,  Alfred J. Mosco

    IPC: B22F3/10

    CPC classification number: E21B10/46 ,  B22F2005/001 ,  B22F2998/00 ,  C22C1/1068 ,  C22C29/00 ,  C22C29/005 ,  C22C29/067 ,  B22F7/06

    Abstract: The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, oxide, and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

    Abstract translation: 本发明涉及用于形成钻头的钻头体的组合物和方法。 钻头体可以包括硬颗粒，其中硬颗粒包括碳化物，氮化物，硼化物，氧化物和固溶体中的至少一种，以及将硬颗粒结合在一起的粘合剂。 粘合剂可以包含选自钴，镍和铁中的至少一种金属和任选的至少一种选自30-60重量％范围的过渡金属碳化物，至多10重量％的熔点降低成分， 最高达20重量％的硅，至多20重量％的铬，至多25重量％的锰，其中重量百分比是基于粘合剂的总重量。 此外，硬颗粒可以包括（i）碳化钨（WC + W2C）颗粒，（ii）过渡金属碳化物颗粒中的至少一种，其选自钛，铬，钒，锆，铪，钽，钼， 铌和钨，和（iii）烧结的硬质合金颗粒。

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